Anavar was first introduced to the world in 1964, when the Searle Company released the first version of the drug called Oxandrolone. Although not as potent as Dianabol, the other popular steroid at the time, Oxandrolone quickly became very popular with bodybuilders and powerlifters, because of its low risk of side effects. Oxandrolone remained at the top of the best-seller lists until the late 1980